WOOTON AND STANDLEY FLOKA OF NEW MEXICO. 21 



Reported from the following localities: Las Lagunitas near Las Vegas, T. S. Bran- 

 degee; San Domingo, Bigelow; Sandia Mountains, Ferris. 



5. Notholaena fendleri Kunze, Farrnkr. 2: 87. pi. 136. 1851. 



Type locality: "In New Mexico. " Type collected by Fendler. 



Range : Wyoming to New Mexico and Arizona, and in northern Mexico. 



New Mexico: Santa Dona; Socorro; Cross L Ranch. Dry hills, in the Upper 

 Sonoran Zone. 



The type is Fendler 's 1017a, collected in 1847 near Santa Fe. Although named from 

 New Mexico, the species is very rare in the State, ranging mainly farther north. 



3. ADIANTUM L. Maiden-hair fern. 



Sori marginal, short, covered by a flaplike reflexed portion of the edge of the pin- 

 nule, on the free but approximate tips of forking veins; fronds bipinnate; stipes slen- 

 der, black, wiry; pinnules mostly obovate-cuneate, with a few incised teeth. 



1. Adiantum capillus-veneris L. Sp. PI. 1096. 1753. Venus-hair fern. 



Adiantum modesturn Underw. Bull. Torrey Club 28: 46. 1901. 



Type locality: "Habitat in Europa australi." 



Range: Virginia and Florida, westward across the continent except in the extreme 

 northwest. 



New Mexico: Eight miles northwest of Reserve; East Fork of the Gila; San 

 Andreas Mountains; Kingston; South Spring River. Damp cliffs, in the Upper 

 Sonoran and Transition zones. 



The type of Adiantum modesturn is Earle's 261 from South Spring River. If dif- 

 fers slightly from our other specimens in having broader, more rounded segments. 

 When one examines a large series of specimens of A . capillus-veneris it is seen that it 

 is a variable species and that A. modesturn is hardly more than a local variation. 



4. PTERIDITJM Scop. Bracken. 



This is a coarse fern of almost world-wide distribution that occurs in the mountains 

 of this State in parklike openings and beside small streams where the soil is rich 

 and water plentiful. It is ordinarily not over 60 cm. high, but sometimes readies 

 a height of 2 meters. We have only one representative of the genus, the western or 

 pubescent form. 



1. Pteridium. aquilinum pubescens Underw. Native Ferns ed. 6. 91. 1900. 

 Type locality: "Utah, California, and northward." 

 Range: Western North America from New Mexico to British Columbia. 

 New Mexico: Tunitcha Mountains; Chama; Santa Fe and Las Vegas mountains; 



Sandia Mountains; Mogollon Mountains; White Mountains. Open slopes, in the 



Transition and Canadian zones. 



5. CHEILANTHES Swartz. Lip fern. 



Sori terminal or nearly so on all the veins, at first very small and rounded, later 

 confluent; imlusium consisting of the reflexed margins of the pinnules, in ours (except 

 one species) continuous all around the pinnule. 



With the exception of C. v/rightii our species belong to that division of the genua 

 having very minute, beadlike segments with the whole margin reflexed. Tiny grow 

 in crevicea of rocks and on ledges oi cliffs in the mountains, generally between eleva- 

 tions of L,450 and 2,100 meters. 



